include what you use in betterRenderer

Its sources reached the standard library through the project headers they
included; those are imports now. 178 headers across 56 files, plus 18 C
library headers elsewhere for memcpy/printf and friends. MSVC's STL does
not supply these transitively the way libstdc++ does.

betterRenderer/renderer/source/gbuffer.cpp

@@ -4,6 +4,7 @@
 
 #include "nvrenderer/nvrenderer.h"
 #include "nvrendererbackend.h"
+#include <cstdint>
 
 NvGbuffer::NvGbuffer(NvRenderer* renderer)
     : m_backend(renderer->m_backend.get()) {}